80124280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12289}}^1$

素因数の和:12463

約数の個数: 32

約数和(自身を含む): 181400400

約数和(自身を除く): 101276120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12289, 24578, 49156, 61445, 98312, 122890, 245780, 491560, 2003107, 4006214, 8012428, 10015535, 16024856, 20031070, 40062140, 80124280]

約数ペア:

[(1, 80124280), (2, 40062140), (4, 20031070), (5, 16024856), (8, 10015535), (10, 8012428), (20, 4006214), (40, 2003107), (163, 491560), (326, 245780), (652, 122890), (815, 98312), (1304, 61445), (1630, 49156), (3260, 24578), (6520, 12289)]